Suppose you've spent months — if not years — of your life learning the hottest Web technologies.

假设您已经付出了几个月乃至几年的时间来学习最热门的Web技术。

youdao

I don't know why I didn't think of it sooner, because this problem has been bugging me for months, if not years!

我不知道为什么我没有更早地想到它，因为这个问题已经困扰了我几个月了，如果不是几年的话！

youdao

However, they understand that putting off their work too often can end up adding months, if not years, to their studies.

然而，他们也明白如果经常拖延学业的话，会在学习进度上落后几个月。

youdao

African countries frequently have to wait for years, if not decades,for new medical products to trickle into their health systems.

VOA: special.2011.01.19

I'm not comforted by the thought that I will still be around 50 years from now, if the thing that's me doesn't have my personality.

我对“我还会存活50年只是那个我，并不带有我的人格“一事并没觉得宽慰。

耶鲁公开课 - 死亡课程节选

There will be no war in a couple of years uh..If you look at the stimulus package, the one thing it is not done is stimulating.

未来几年将不会有发战争财的机会,呃，如果你看刺激计划，它没有做到的一件事情就是刺激市场。

斯坦福公开课 - 经济学课程节选

Service technicians are often stuck with documentation that is months, if not years, out of date.

ENGADGET: iFixit intros Dozuki, promises 'service manuals that don't suck'

The rattling of sabres has been heard in both capitals for months, if not years.

ECONOMIST: Russia and Georgia

But the detainees' lawyers say their habeas corpus challenges could take months, if not years.

ECONOMIST: The Supreme Court